Container cover and attachment therefor



July 7, 1942. J. D. HILL CONTAINER COVER AND ATTACHMENT THEREFOR Filed April 6, 1939 2 Sheets-Sheet l 6 4 0 an a. H. U l H 6 H w .2 H x m .H. .4 M. w H H 8 ,O/ a. 4 7 z a w INVENTOR {ash 0. /7'/'//.

ly 1942-. v J. D. HILL 2,288,707

CONTAINER COVER KND ATTACHMENT THEREFOR yllllll 'IIIIIII/ I Filed April 6, 1939 2 Sheets-Sheet '2 I/l/I/IIIIIIIIII/l I I Patented July 7, 1942 CONTAINER COVER AND ATTACHM'ENT THEREFOR Justin D. Hill, Lawrence, Kans., assignor to The Lawrence Paper Company, Lawrence, Kans., a corporation of Kansas Application April 6, 1939, Serial N 0. 266,341

1 Claim.

This invention relates to covers for containers, preferably of a character disclosed, for example in Patent No, 1,774,511 of September 2, 1930, to Irving Hill et al., and more particularly toan arrangementfor applying covers to containers.

The principal objects of the invention are to provide a convenient, efficient and economical cover, together with related devices for facilitating attaching the cover-t0 and securing the same i on a container; and to provide for easily detaching the cover or a part thereof from a container to inspect the contents of,or remove the same from, the container and/or for other purposes.

In accomplishing these and, other objects of the present invention, I have provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective-view of a container to which a cover is attached in accordance with the present invention.

Fig. 2 is a fragmentary plan view of a blank from which the preferred form of cover is constructed.

Fig. 3 is a fragmentary perspective view of a container showing a cover therefor embodyin my invention in spaced relation thereto.

Fig. 4 is a detail perspective view of a cover, particularly illustrating the interengaged relation between the cover flanges, and fastening devices.

Fig. 5 is a detail vertical cross-section substantially on the line 55, Fig. 1.

Fig. 6 is a perspective view of a container of the general type disclosed in the patent above mentioned, and which preferably includes a bottom Wall 2, side Walls 3 and 4 and end Walls 5 and 6, side flaps I and 8 being provided on the upper edges of the side walls, if desired, as well as a partition 9 secured to the side walls,

as at It), to brace the container-and aid in supporting the side wall flaps, when said flaps are folded inwardly.

The upper edges of the end walls of the container are preferably provided with'flanges H and 12, which may be folded outwardly and downwardly to form hook or like members.

i5 designates a cover preferably of substantially the size, shape and material of the container, the cover constituting a body member preferably having inner end flanges l6 and I! foldable over the container end wall flanges. The flanges l5 and I? have fold lines I8 and I9 spaced from the end edges of the cover member to form outer end flanges ED and 21 and adapt the flanges for folding under and behind the container flanges I! and I2, the cover end flanges thus, in effect, forming hook or like members interengageable with the container hook members for applying the cover in closing relation to the container.

In order to aid in maintaining the container and cover hook members in interengaged relation and to further enhance confinement of contents of the container, the cover 15 is preferably provided with side flanges 22 and 23, which are f-oldable over the upper edges of the side Walls of the container. The side flanges have tabs 24 and 25 that fold on the lines 26 and 21 around the corners of the container and are arranged for insertion between certain of the cover and container end flanges. As a matter of practice, the tabs 28 and 29 at one end of the cover are preferably secured to the cover end flanges by suitable fastening devices 30.

With the construction thus far described, there is a tendency in the elements of the cover to return to blank or flat form; however, this tendency is used to advantage in that, when folded and applied as shown, the cover flanges and tabs frictionally engage each other and the container flanges in such a manner that considerable resistance to change is developed.

In order to positively lock the flanges and tabs of the cover and container in interengaged relation, it has been found desirable to provide Spaced recesses 3| and 32 in an end flange of the cover, such as the notches illustrated, which notches are preferably positioned at the fold line l8 so that they are arranged on the bottom edges of the cover hook member when the flanges are folded, as particularly illustrated in Fig. 4. The side flanges of the cover are also preferably provided with apertures 33 adjacent the tabs 24 and 25. Fastening devices 34 and 35, such as wire, cord or similar ties, may thus be applied to the apertures and recesses to lock the flanges and secure the cover to the container.

In attaching a cover to a container, both of which are constructed as described, the tabs 28 and 29 may be secured to the inner end of the cover flange 2|, as shown in Fig. 3, whereupon the outer end of that flange is placed between the flange l2 and the container. The container side flaps being folded inwardly, the other end of the cover may then be lowered to cover the open upper end of the container. The side flaps of the cover fit over the upper outer edges of the container side walls and the end flange l8 of the cover is folded downwardly and the outer end 20 thereof folded inwardly and upwardly behind the container flange II. The tabs 24 and 25 on the cover side flanges are then preferably inserted, as shown in Fig. 4, between the inner end of the cover flange l6 and the outer face of the container flange l l. The fastening devices 34 and 35 may then be applied to adjacent recesses in the cover end flange and apertures in the cover side flanges to secure the cover and container flanges in interengaged relation and positively look the container in closed condition.

In the modified form of invention, illustrated in Figs. 6 to 8, the container 36, including the end flanges 31 and 38 thereon, is preferably substantially the same as that of the preferred form. Also, the cover member 39, including the end flange 40 and the tabs 4| and 42 on the side flanges 43 and 44, is substantially the same as in the preferred form of cover.

In this instance, however, the tabs 45 and 46 are provided with apertures 41 and 48, respectively, through which tongues 49 and B] are arranged to pass, the tongues preferably being struck from portions of the inner end 5| of the end flange 52 on the cover, which portions and/or tongues align with the tab apertures when the cover flange 52 is folded over and be hind the container flange 31.

In applying the cover constructed in accordance with the modified form of invention to a container such as that illustrated, the end of the cover, bearing the flange 40, is applied to the container in a manner similar to the preferred form of invention. In folding the cover flange 52 over and behind the container flange 31, the

tongues 49 and 50 should be sprung inwardly for passage through the apertures 41 and 48, the cover side flanges meanwhile having been folded downwardly and the tabs thereon inwardly. During completion of folding of the flange 52 about the flange 31, the tongues are forced inwardly relative to each other, as shown in Fig. '7, to form a lock maintaining interengagement of the flanges and the cover in closing relation to the container.

The cover, if desired, may be easily detached from the container substantially by a reversal of the applications described, and the container may be partly opened for inspection, or for other purposes, by detaching one end of the cover from the container and employing the flange on the opposite end thereof as a hinge while maintaining interengagement between that end of the cover and the container in such a manner that the detached end of the cover may be raised and lowered at will.

It is apparent, therefore, that a convenient, economical and efficient arrangement is provided by the present invention for attaching or detaching a cover, wholly or in part, to a container; the cover and container having numerous advantageous characteristics among which are exceptional strength, durability, and security for contents in the container.

What I claim and desire to secure by Letters Patent is:

In a device of the character described, a substantially rectangular container having outwardly and downwardly turned flaps on the end walls thereof, a cover for the container having outwardly and downwardly turned flaps on the side edges thereof and having outwardly, downwardly and upwardly turned flaps on the end edges thereof, each upwardly turned flap of the end edge of the cover being lockingly engaged with a downwardly turned flap on the container, each side flap having an aperture therein adjacent the ends thereof, said end edge cover flaps having a recess adjacent each end thereof intersecting the juncture of the downwardly and upwardly turned flap, and a strand insertible in an aperture and engageable with an adjacent recess having its ends secured together to hold said cover and container in closed condition.

JUSTIN D. HILL. 

